6-Piece Mounted Objects Set for Optical Bench, 2 x 2" Subcategory_Scales and Balances this set covers the mid-range

this set covers the mid-range bench volumes with raised graduations and tapered pouring spouts

and heart-tube formation for embryology and developmental biology teaching

Zinc alloy natural gas Bunsen burner with flame stabilizer ships with a 2-foot neoprene gas hose for quick bench hookup in chemistry classrooms

5x clear views through a 3-inch optical-glass lens with a 6-inch focal length

Length-adjustable wooden pendulum simple-machine model with a blue bob sliding along the string and a wooden guide keeping the swing on a consistent path for period-vs-length measurements

6-Piece Mounted Objects Set for Optical Bench, 2 x 2" Subcategory_Scales and Balances this set covers the mid-rangeSix standardized objects mounted in 2 x 2 inch plastic frames, dimensioned to slot into PH0651 optical bench holders for repeatable image formation, magnification, and lens behavior studies.